Difference between revisions of "2023 AMC 10A Problems/Problem 21"

(Created page with "21. The bond dissociation energies for F2 and Cl2 are approximately 158 and 242 kJ mol−1, respectively. Given that the enthalpy change for the reaction below is ΔH = −54...")
 
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A 200 kJ mol−1
 
A 200 kJ mol−1
  
*B 254 kJ mol−1
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B 254 kJ mol−1
  
 
C 146 kJ mol−1
 
C 146 kJ mol−1

Revision as of 14:36, 5 November 2023

21. The bond dissociation energies for F2 and Cl2 are approximately 158 and 242 kJ mol−1, respectively. Given that the enthalpy change for the reaction below is ΔH = −54 kJ mol−1, what is the bond dissociation energy for the F-Cl bond? ½ F2(g) + ½ Cl2(g) → FCl(g)

A 200 kJ mol−1

B 254 kJ mol−1

C 146 kJ mol−1

D 454 kJ mol−1

E 346 kJ mol−1

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